Honestly think that Harry is in a constant state of panic that he will loose Meghan, and he would have been happy with a quieter life if that was her desire... basically think he would have gone along with whatever she wanted to keep her happy.
He can't believe he bagged her, see lots of his Mum in her, and when she stirred up drama about the press / security pre-Mexit, he saw himself in a knight in shining armour role / a way of puffing up his chest to secure her attentions.
Also think, after reading Spare, he grew up fighting for the attentions and respect of his Dad and brother. Bagging Meghan didn't alter this - much to his surprise - and then, like a little kid, executed extremely bad behavior (Oprah and Spare) to get their attention in an alternative way.
Like others have said many times, he has zero self reflection or awareness and has single-handedly done the most damage (yes including AMW) to the Royal family in years.
Its a fastinating character study, and I'm here for it! Love these threads.
Edited for forgetting the 'h' at the end of Oprah :-)